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New [proto]type of earphone technology designed for noisy dense urban environments to control and expand your reality.
![Kalkul [proto]Type 1](https://ph-files.imgix.net/21d3e06d-f9f4-449e-ada9-db55c2ccfab0.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=64&h=64&fit=crop&frame=1)
![Kalkul [proto]Type 1](https://ph-files.imgix.net/21d3e06d-f9f4-449e-ada9-db55c2ccfab0.jpeg?auto=compress&codec=mozjpeg&cs=strip&auto=format&w=14&h=14&fit=crop&frame=1)